Examinando por Autor "Pujana Arrese, Aron"

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  • Miniatura
    Ítem
    A methodology for real-time hil validation of hydraulic-press controllers based on novel modeling techniques
    (Institute of Electrical and Electronics Engineers Inc., 2019-08-09) Rodríguez Guerra, Jorge; Calleja Elcoro, Carlos ; Elorza, Iker ; Macarulla, Ana María; Pujana Arrese, Aron; Azurmendi, Igor
    Industrial machines commissioning consumes a great amount of man-hours, due to control designers lack of knowledge about the final controller gains before they start working with it. Virtual commissioning has been postulated as an optimal solution to deal with this lack of knowledge when the Real-Time simulation of the digital models reproduces an identical behaviour as the industrial machines they represent. Cyber-Physical Systems (CPSs) offer new opportunities in this field, however, in the case of industrial machines, acquiring this level of accuracy requires to slow down the simulation. On this paper, novel modelling techniques for industrial CPSs have been presented. They are introduced to help in the evolution from conventional control design to a virtual commissioning process combining software and hardware capabilities. This methodology has been tested with a hydraulic-press model designed following manufacturer specifications, initially under a Software in the Loop (SiL) validation platform and, afterwards, in a Hardware in the Loop (HiL) validation platform. The control algorithms are designed in laboratory conditions harmless for the machine, embedding them later in the industrial environment without further modifications.
  • Miniatura
    Ítem
    On fault-tolerant control systems: a novel reconfigurable and adaptive solution for industrial machines
    (Institute of Electrical and Electronics Engineers Inc., 2020) Rodríguez Guerra, Jorge; Calleja Elcoro, Carlos; Macarulla, Ana María; Pujana Arrese, Aron; Elorza, Iker; Ramos Bravo, Mikel
    Fault-Tolerant Controllers (FTCs) modify system behaviour to overcome faults without human interaction. These control algorithms, when based on active approach, detect, quantify and isolate the faults during Fault Detection and Isolation (FDI) phase. Afterwards, during Control Re-design (CR) phase, the controller is reconfigured and adapted to the faulty situation. This last phase has been approached by a wide variety of algorithms, being Adaptive Controllers (ACs) the ones studied in this paper. Despite their potentiality to overcome faults, industrial manufacturing systems demand robustness and flexibility levels hardly achievable by these algorithms. On this context, the paper proposes to upgrade them introducing novel Digital-Twin (DT) models to increase its flexibility and Anti-Windup (AW) techniques to improve their robustness. These novelties reach their maximum potential when FDI and CR phases merge to generate a novel FTC platform based on a Bank of Controllers (BC), improving the fault avoidance process as controller gains are switched to the ones that recover the machine more efficiently.